Are you having trouble telling time? Well Pop the Penguin is coming to the rescue in an all new Pop the Penguin app. Help Pop and Lulu learn how to tell time by working with a digital and rotating analog clock. Customize your test any way you like. Alternate between analog and digital clock problems. This fulfills the common core standard 1.MD.3. (Tell and write time in hours and half-hours using analog and digital clocks.)